CN103991151B - A kind of rate of heat addition is adjustable, the die device of temperature-controllable and control method thereof - Google Patents
A kind of rate of heat addition is adjustable, the die device of temperature-controllable and control method thereof Download PDFInfo
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- CN103991151B CN103991151B CN201410231562.7A CN201410231562A CN103991151B CN 103991151 B CN103991151 B CN 103991151B CN 201410231562 A CN201410231562 A CN 201410231562A CN 103991151 B CN103991151 B CN 103991151B
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Abstract
The open <b> mono-</b> kind rate of heat addition of the present invention is adjustable, the die device of temperature-controllable and control method thereof, and the conduction oil in liquid storage tank pumps in liquid heater by booster pump; Simultaneously to the heat-conducting oil heating in liquid heater, the conduction oil after heating flows in the flexible pipe in upper and lower mould respectively, then flows back in liquid storage tank, realize upper and lower two-sided while, continuous heating; Does controller often rise by temperature when sheet temperature sensor detected temperatures reaches 2/3rds temperature value of the preset temperature of controller
the voltage of transformer is turned down, to regulate the rate of heat addition; In the flexible pipe that conduction oil through adding hot reflux in liquid storage tank flows in upper and lower mould respectively through condenser, realize continuing, progressive cooling; The oil of the thermostable heat-conductive in a liquid storage tank is utilized to realize heating while upper and lower mould or cooling, realize the automatic adjustment of the rate of heat addition and the automatic control of heating-up temperature to reduce heat punching by the configuration of controller, transformer, temperature sensor, temperature is controlled more accurate.
Description
Technical field
The invention belongs to technical field of mold, specifically relate to that a kind of rate of heat addition is adjustable, the die device of temperature-controllable, be mainly used in heating-up temperature accuracy and being heated evenly property require harsher, field is manufactured to the various large-scale fibre reinforced composites component shortening production cycle demand urgent.
Background technology
In the manufacture process of large-scale fibre reinforced composites and product thereof, the accurate control of temperature and the mechanical property of uniformity on product of Temperature Distribution have vital impact.At present, the mold heated mode used in the manufacture process of large-scale fiber reinforcement compound material piece mainly contains several modes such as baking oven/autoclave heating, hot air, electrical heating.To baking oven/autoclave mode of heating, although product and mold temperature distribution are comparatively even, operating cost is low, when heating large-size components, to baking oven/autoclave specification and functional requirement harshness, mold movement and operation inconvenience, the required heat time is long, and heating effect is undesirable; Hot air mode temperature regulating power is poor and be difficult to infiltration and the solidification temperature requirement of satisfied current most large-scale fibre reinforced composites; Electric heating is generally by pre-buried resistance wire realization in a mold, initial stage drops into low, control mode is flexible, short-period used is effective, but resistance wire is oxidizable and cause production safety hidden danger in prolonged and repeated use procedure, and heat loss is large, temperature distributing disproportionation is even, heat punching is severe, easily causes material to cross fire damage.In addition, the mold cools down mode mainly water-cooled of current employing, not only cooling velocity is slow, weak effect, and cooling water and mould also easily cause the heat fatigue of mould to chap in the huge temperature difference at the initial stage of cooling to cause mould invalidation, such as: China Patent No. is 200520053210.3, name is called " a kind of circulating water type mould temperature control machine ", China Patent No. is 200520053210.3, name is called " water circle device of die temperature controller ".
Summary of the invention
The object of the invention is the deficiency for solving mold heated and the type of cooling existence used in the manufacture process of existing large-scale fiber reinforcement compound material piece, there is provided a kind of and can realize that the rate of heat addition is adjustable, the die device of temperature-controllable, the control method of this die device is provided simultaneously, realize heating while upper die and lower die or cooling, ensure mould and large-scale fibrous composite thermally equivalent, and heating-up temperature and the rate of heat addition can auto-controls in heating process, heat is rushed little.
For achieving the above object, the technical scheme that a kind of rate of heat addition of the present invention is adjustable, the die device of temperature-controllable adopts is: comprise upper die and lower die, flexible pipe is all arranged in upper die and lower die inside, the two ends of flexible pipe are all stretched out from the import and export end of upper die and lower die, the flexible pipe stretched out from the entrance point of upper die and lower die connects two of the 3rd three-way pipe respectively, and the flexible pipe stretched out from the port of export of upper die and lower die connects two of the 4th three-way pipe respectively; The liquid storage tank of the triple joint sealing of the 4th three-way pipe, contain conduction oil in liquid storage tank, the 3rd of the 3rd three-way pipe connects one of the second three-way pipe by pipeline, and other end the 4th check valve of the second three-way pipe connects the output of condenser; 3rd output bottom the 3rd check valve connecting fluid body heater of the second three-way pipe; Arrange heating wire in liquid heater, heating wire is by the switch connection control device with its series winding; The input of condenser connects one of the first three-way pipe by the second check valve, the other end of the first three-way pipe connects liquid storage tank through booster pump, the 3rd the top input through the first check valve connecting fluid body heater of the first three-way pipe; The upper surface place of counterdie is provided with the sheet temperature sensor by holding wire connection control device, and controller is also by control line connection transformer, booster pump, condenser and all check valves respectively.
The technical scheme that the rate of heat addition of the present invention is adjustable, the control method of the die device of temperature-controllable adopts has following steps: A, controller control the second, the 4th closed check valve, condenser shut down; Control booster pump work, the first one-way valve opens, the conduction oil in liquid storage tank pumps in liquid heater by booster pump; Heating wire work is controlled with Time Controller, to the heat-conducting oil heating in liquid heater, and open the 3rd check valve, conduction oil after heating is through flowing in the flexible pipe in upper die and lower die respectively by the 3rd check valve, the second three-way pipe, the 3rd three-way pipe successively, flow back in liquid storage tank 1 via the 4th three-way pipe again, realize upper and lower two-sided while, continuous heating.B, in continuous heating process, when sheet temperature sensor detected temperatures reaches the preset temperature of controller
2/3rds temperature values time, controller often rises by temperature
the voltage of transformer is turned down
volt,
, be the initial voltage that controller is preset, until mold temperature reaches the preset temperature of controller
till, to regulate the rate of heat addition.C, controller opens the 4th, two check valves, and open cold condenser and booster pump, flow in the flexible pipe in upper die and lower die after sequentially passing through the first three-way pipe, the second check valve, condenser, the 4th check valve, the second three-way pipe, the 3rd three-way pipe under the effect of conduction oil through adding hot reflux in liquid storage tank at booster pump respectively, then liquid storage tank is flowed back to via the 4th three-way pipe, and circulate under the drive of booster pump, realize lasting, progressive cooling.
After the present invention adopts technique scheme, the beneficial effect had is:
1, the thermostable heat-conductive oil in a liquid storage tank is utilized to realize heating while upper die and lower die or cooling, realize the automatic adjustment of the rate of heat addition and the automatic control of heating-up temperature to reduce heat punching by the configuration of controller, transformer, temperature sensor, temperature is controlled more accurate.
2, the present invention realizes Double-side Heating to material or cooling by the layout that the continuous print on upper die and lower die surface bends heat tunnel, ensures being uniformly distributed of mould or material temperature.
3, the present invention is by the progressive cooling of cooling system, while the shortening composite product production cycle, greatly reduces the heat fatigue be full of cracks failure risk of mould.
4, the present invention is particularly useful for manufacturing field to heating-up temperature accuracy and the harsher large-scale composite material product of temperature distribution evenness requirement, the configuration of its gradual cooling system also substantially reduces the production cycle of composite and product thereof, can improve mechanical property and the workmanship of large-scale fiber composite component.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is that a kind of rate of heat addition of the present invention is adjustable, the structural representation of the die device of temperature-controllable;
Fig. 2 be the first half 23 of patrix 8 in Fig. 1 look up structural representation;
Fig. 3 is the structural representation of the latter half 24 of patrix 8 in Fig. 1;
Fig. 4 be the first half 27 of counterdie 9 in Fig. 1 look up structural representation;
Fig. 5 be the latter half 28 of counterdie 9 in Fig. 1 structural representation;
In figure: 1. liquid storage tank; 2. booster pump; 3. liquid heater; 4. heating wire; 5. condenser; 6. controller; 7. transformer; 8. patrix; 9. counterdie; 10. sheet temperature sensor; 11. first three-way pipes; 12. second three-way pipes; 13. the 3rd three-way pipes; 14. the 4th three-way pipes; 15. first check valves; 16. second check valves; 17. the 3rd check valves; 18. the 4th check valves; 19. first pipe joints; 20. second pipe joints; 21. the 3rd pipe joints; 22. the 4th pipe joints; 23. patrix the first half; 24. patrix the latter halfs; The half-arc groove of 25. patrix the first half lower surfaces; The half-arc groove of 26. patrix the latter half upper surfaces; 27. counterdie the first half; 28. counterdie the latter halfs; The half-arc groove of 29. counterdie the first half lower surfaces; The half-arc groove of 30. counterdie the latter half upper surfaces; 31. step grooves; 32. patrix the first half lower surfaces; 33. patrix the latter half upper surfaces; 34. counterdie the first half lower surfaces; 35. counterdie the latter half upper surfaces; 36. counterdie the first half upper surfaces.
Detailed description of the invention
Shown in Figure 1, a kind of rate of heat addition of the present invention is adjustable, the die device of temperature-controllable comprises patrix 8 and counterdie 9, resistant to elevated temperatures flexible pipe is all arranged in the inside of patrix 8 and counterdie 9, the two ends of flexible pipe are all stretched out from the entrance point of patrix 8 and counterdie 9, the port of export, external part is all connected outside three-way pipe by pipe joint with pipeline, the flexible pipe stretched out from patrix 8 and the entrance point of counterdie 9 is connected two of the 3rd three-way pipe 13 respectively, and the flexible pipe stretched out from patrix 8 and the port of export of counterdie 9 is connected two of the 4th three-way pipe 14 respectively.Specifically: the flexible pipe of patrix 8 inside is connected one of the 3rd three-way pipe 13 with pipeline by the first pipe joint 19 at entrance point, the flexible pipe of counterdie 9 inside is connected the other end of the 3rd three-way pipe 13 with pipeline by the second pipe joint 20 at entrance point, the flexible pipe of patrix 8 inside is connected one of the 4th three-way pipe 14 with pipeline by the 3rd pipe joint 21 at the port of export, the flexible pipe of counterdie 9 inside is connected the other end of the 4th three-way pipe 14 with pipeline by the 4th pipe joint 22 at entrance point.The liquid storage tank 1 of the triple joint sealing of the 4th three-way pipe 14, thermostable heat-conductive oil is contained in the liquid storage tank 1 of sealing, and the 3rd of the 3rd three-way pipe 13 the to connect of the second three-way pipe 12 by pipeline, the other end of the second three-way pipe 12 connects the 4th check valve 18, connects the output of condenser 5 through the 4th check valve 18.Triple joint the 3rd check valve 17 of the second three-way pipe 12, through the bottom output of the 3rd check valve 17 connecting fluid body heater 3.Heating wire 4 is set in liquid heater 3, heating wire 4 is by the switch connection control device 6 with its series winding, it is outside that controller 6 is positioned at liquid heater 3, controlled the work of heating wire 4, realize heating the thermostable heat-conductive oil in liquid heater 3 by controller 6.The input of condenser 5 connects one of the first three-way pipe 11 by the second check valve 16, the other end of the first three-way pipe 11 connects the 3rd the top input through the first check valve 15 connecting fluid body heater 3 of liquid storage tank 1, first three-way pipe 11 of sealing through booster pump 2.
Install sheet temperature sensor 10 at the upper surface place of counterdie 9, sheet temperature sensor 10 is by holding wire connection control device 6, and controller 6 is also by control line connection transformer 7, booster pump 2, condenser 5 and all check valves respectively.The arrival end external power supply of transformer 7, transformer 7 port of export is connected with controller 6.
Flexible pipe used and pipeline are resistant to elevated temperatures teflon pipe 363, adopt resistant to elevated temperatures perfluoroelastomers sealing ring to seal at each interface of teflon pipe 363.
Shown in Fig. 2 and Fig. 3, patrix 8 is made up of the first half 23 and the latter half 24, and the lower surface of patrix 8 the first half 23 has the curved surface 32 consistent with product shape, and curved surface 32 is provided with the half-arc groove 25 that the U-shaped or V-type of continuous print is arranged; The upper surface of patrix 8 the latter half 24 has the curved surface 33 consistent with lower surface 32 shape of patrix 8 the first half 23, curved surface 33 is provided with the half-arc groove 26 that the U-shaped or V-type of the continuous print corresponding to half-arc groove 25 shape is arranged, half-arc groove 25 and half-arc groove 26 form continuous print passage to being combined, continuous print passage is mid-softens pipe, namely puts high temperature resistant teflon pipe 363; The first half 23 of patrix 8 and the latter half 24 of patrix 8 are located by pin, and screw connects, and flexible pipe are encapsulated in half-arc groove 25 with half-arc groove 26 in the continuous print passage synthesized.
Shown in Fig. 4 and Fig. 5, counterdie 9 is made up of the first half 27 and the latter half 28, and the lower surface of counterdie 9 the first half 27 has the curved surface 34 consistent with product shape, and curved surface 34 is provided with the U-shaped or V-type of continuous print and arranges half-arc groove 29; The upper surface of counterdie 9 the latter half 28 has the curved surface 35 consistent with lower surface 34 shape of counterdie 9 the first half 27, curved surface 35 is provided with the half-arc groove 30 that the U-shaped or V-type of the continuous print corresponding with half-arc groove 29 shape is arranged, half-arc groove 29 and half-arc groove 30 form continuous print passage to being combined, and continuous print passage is mid-is placed with Thermostable flexible hose; Counterdie the first half 27 and counterdie the latter half 28 are located by pin, and screw connects, and are encapsulated in by high temperature resistant teflon pipe 363 in the continuous print passage that half-arc groove 29 and half-arc groove 30 be combined to form; Near counterdie the first half 27, next-door neighbour upper surface 36 place offers a step groove 31, and settle sheet temperature sensor 10 in step groove 31, sheet temperature sensor 10 is connected with controller 6 by wire.
A kind of rate of heat addition of the present invention is adjustable, the die device of temperature-controllable is a complete mold heated or cooling liquid loop apparatus, realize the automatic adjustment of the rate of heat addition by controller 6 and transformer 7 and thermal inertia controlled, realize heating-up temperature by controller 6 and sheet temperature sensor 10 controlled, realized the progressive cooling of mould by controller 6 and condenser 5.Specifically:
A, controller 6 control the second, the 4th check valve 16,18 and close, and condenser 5 quits work; Control booster pump 2 works, the first check valve 15 is opened, by booster pump 2, the thermostable heat-conductive oil pump in liquid storage tank 1 is entered in liquid heater 3, control heating wire 4 with Time Controller 6 to work, to the heat-conducting oil heating in liquid heater 3, and open the 3rd check valve 17, thermostable heat-conductive oil after heating flows into respectively in the flexible pipe in patrix 8 and counterdie 9 via the 3rd check valve 17, second three-way pipe 12, the 3rd three-way pipe 13, and then flows back in the liquid storage tank 1 of sealing via the 4th three-way pipe 14.So, circulate under the drive of booster pump 2, with realize to material in mould upper and lower two-sided while, continuous heating.
B, in continuous heating process, when sheet temperature sensor 10 detects the preset temperature that mold face temperature reaches controller 6
(as: the infiltration temperature of YPH-23 epoxy resin
) 2/3rds temperature value (namely
) time, often risen by temperature by controller 6
, the voltage of transformer 7 is turned down
volt,
, wherein
, be the initial voltage that controller 6 is preset, regulate the rate of heat addition with this, reduce heat punching, until mold face temperature reaches the preset temperature of controller 6
till, complete the heating process that heating materials speed is adjustable.
C, reach the preset temperature of controller 6 when mold temperature
time, by controller 6 by the voltage of transformer 7 thus time
volt is adjusted to 0 volt to stop heating, when mold temperature reaches the preset temperature of controller 6
below
time (
), then be adjusted to by the voltage of controller 6 by transformer 7
volt, starts heating at lower voltages, so repeatedly, realizes insulation, and the temperature retention time that temperature retention time is preset by controller 6 determines.
After D, the temperature retention time preset at controller 6 terminate, then by controller 6 successively closing liquid heater 3, booster pump 2, first check valve 15, the 3rd check valve 17, the voltage of transformer 7 is adjusted to the initial voltage that controller 6 is preset simultaneously
, complete heating and insulating process.
E, before cooling procedure starts, the 4th check valve 18 is opened successively by controller 6, second check valve 16, and open cold condenser 5 and booster pump 2, through adding the thermostable heat-conductive oil of hot reflux under the effect of booster pump 2 in liquid storage tank 1, sequentially pass through the first three-way pipe 11, second check valve 16, condenser 5, 4th check valve 18, second three-way pipe 12, flow in the flexible pipe arranged in patrix 8 and counterdie 9 after 3rd three-way pipe 13 respectively, then the liquid storage tank 1 of sealing is flowed back to via the 4th three-way pipe 14, and circulate under the drive of booster pump 2, realize continuing of mould and material, progressive cooling.
F, in mold cools down process, when sheet temperature sensor 10 detect mold face temperature reach controller 6 set chilling temperature
(be generally room temperature
) time, close booster pump 2, condenser 5, the 4th check valve 18 and the second check valve 16 successively by controller 6, complete cooling procedure, then can die sinking pickup.
Claims (4)
1. the control method of the die device of adjustable, the temperature-controllable of the rate of heat addition, described die device comprises patrix (8) and counterdie (9), flexible pipe is all arranged in upper and lower mould (8,9) inside, the two ends of flexible pipe are all stretched out from the import and export end of upper and lower mould (8,9), the flexible pipe stretched out from the entrance point of upper and lower mould (8,9) connects two of the 3rd three-way pipe (13) respectively, and the flexible pipe stretched out from the port of export of upper and lower mould (8,9) connects two of the 4th three-way pipe (14) respectively; The liquid storage tank (1) of the triple joint sealing of the 4th three-way pipe (14), liquid storage tank contains conduction oil in (1), the 3rd of 3rd three-way pipe (13) connects one of the second three-way pipe (12) by pipeline, the other end the 4th check valve (18) of the second three-way pipe (12) connects the output of condenser (5); The 3rd of second three-way pipe (12) through the 3rd check valve (17) connecting fluid body heater (3) bottom output; Heating wire (4) is set in liquid heater (3), heating wire (4) connection control device (6); The input of condenser (5) connects one of the first three-way pipe (11) by the second check valve (16), the other end of the first three-way pipe (11) connects liquid storage tank (1) through booster pump (2), the 3rd the top input through the first check valve (15) connecting fluid body heater (3) of the first three-way pipe (11); The sheet temperature sensor (10) by holding wire connection control device (6) is equipped with at the upper surface place of counterdie (9), controller (6), by control line connection transformer (7), booster pump (2), condenser (5) and all check valves respectively, is characterized in that having following steps:
A, controller (6) control the second, the 4th check valve (16,18) and close, and condenser (5) quits work; Control booster pump (2) work, the first check valve (15) are opened, and the conduction oil in liquid storage tank (1) pumps in liquid heater (3) by booster pump (2); Same Time Controller (6) controls heating wire (4) work, to the heat-conducting oil heating in liquid heater (3), and open the 3rd check valve (17), conduction oil after heating is through flowing in the flexible pipe in upper and lower mould (8,9) respectively by the 3rd check valve (17), the second three-way pipe (12), the 3rd three-way pipe (13) successively, flow back in liquid storage tank (1) via the 4th three-way pipe (14) again, realize upper and lower two-sided while, continuous heating;
B, in continuous heating process, when sheet temperature sensor (10) detected temperatures reaches the preset temperature T of controller (6)
o2/3rds temperature values time, controller (6) often rises 10 DEG C by temperature, is turned down by the voltage of transformer (7)
volt, u
0=220V is the initial voltage that controller (6) is preset, until mold temperature reaches the preset temperature T of controller (6)
otill, to regulate the rate of heat addition;
C, controller (6) opens the 4th, two check valves (18, 16), and open cold condenser (5) and booster pump (2), conduction oil through adding hot reflux in liquid storage tank (1) sequentially passes through the first three-way pipe (11) under the effect of booster pump (2), second check valve (16), condenser (5), 4th check valve (18), second three-way pipe (12), flow in the flexible pipe in patrix (8) and counterdie (9) after 3rd three-way pipe (13) respectively, then liquid storage tank (1) is flowed back to via the 4th three-way pipe (14), circulate under the drive of booster pump (2), realize continuing, progressive cooling.
2. control method according to claim 1, is characterized in that: in step B, when mold temperature reaches the preset temperature T of controller (6)
otime, controller (6) by the voltage of transformer (7) thus time u volt be adjusted to 0 volt with stops heat; When mold temperature reaches the preset temperature T of controller (6)
obelow 2 DEG C time, controller (6) voltage of transformer (7) is adjusted to u volt starts heating, realize insulation.
3. control method according to claim 2, it is characterized in that: after temperature retention time reaches the default temperature retention time of controller (6), controller (6) successively closing liquid heater (3), booster pump (2), first, the 3rd check valve (15,17), the voltage of transformer (7) is adjusted to simultaneously controller (6) preset initial voltage u
0=220V, completes heating and insulation.
4. control method according to claim 1, is characterized in that: in step C, when sheet temperature sensor (10) detected temperatures reaches the chilling temperature T that controller (6) sets
ctime, controller (6) cuts out booster pump (2), condenser (5), the 4th check valve (18) and the second check valve (16) successively, completes cooling procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231562.7A CN103991151B (en) | 2014-05-29 | 2014-05-29 | A kind of rate of heat addition is adjustable, the die device of temperature-controllable and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231562.7A CN103991151B (en) | 2014-05-29 | 2014-05-29 | A kind of rate of heat addition is adjustable, the die device of temperature-controllable and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103991151A CN103991151A (en) | 2014-08-20 |
| CN103991151B true CN103991151B (en) | 2016-03-02 |
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|---|---|---|---|
| CN201410231562.7A Expired - Fee Related CN103991151B (en) | 2014-05-29 | 2014-05-29 | A kind of rate of heat addition is adjustable, the die device of temperature-controllable and control method thereof |
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| CN (1) | CN103991151B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626460A (en) * | 2015-02-09 | 2015-05-20 | 东莞市瀛通电线有限公司 | Double-color spiral strip injection machine based on PLC control and strip injection method for double-color spiral strip injection machine |
| CN105150426A (en) * | 2015-09-01 | 2015-12-16 | 太仓求精塑模有限公司 | Mold energy-saving temperature control system |
| CN108237668B (en) * | 2018-01-29 | 2020-01-24 | 中山骏腾塑胶制品有限公司 | Injection molding device capable of slowly reducing cooling speed through cooling liquid |
| CN110341092A (en) * | 2019-07-17 | 2019-10-18 | 株洲时代新材料科技股份有限公司 | A kind of wind-powered blade mold temperature control equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690137Y (en) * | 2004-03-08 | 2005-04-06 | 百阳国际股份有限公司 | Oil circulation mold temperature control structure |
| CN2743116Y (en) * | 2005-01-04 | 2005-11-30 | 汪永斌 | Circulating water type mould temperature control machine |
| CN102492289A (en) * | 2011-11-14 | 2012-06-13 | 丹阳丹金航空材料科技有限公司 | Carbon fiber reinforced composite material and preparation technology thereof |
| CN203267006U (en) * | 2013-03-12 | 2013-11-06 | 张明仁 | Device for heating mould |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009839A (en) * | 1999-06-29 | 2001-01-16 | Ube Ind Ltd | Plastic molding die temperature control device and molding die temperature control method |
-
2014
- 2014-05-29 CN CN201410231562.7A patent/CN103991151B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690137Y (en) * | 2004-03-08 | 2005-04-06 | 百阳国际股份有限公司 | Oil circulation mold temperature control structure |
| CN2743116Y (en) * | 2005-01-04 | 2005-11-30 | 汪永斌 | Circulating water type mould temperature control machine |
| CN102492289A (en) * | 2011-11-14 | 2012-06-13 | 丹阳丹金航空材料科技有限公司 | Carbon fiber reinforced composite material and preparation technology thereof |
| CN203267006U (en) * | 2013-03-12 | 2013-11-06 | 张明仁 | Device for heating mould |
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